feat: add server config endpoint

src/app/api/server-config/route.ts

@@ -0,0 +1,14 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+import { getConfig } from '@/lib/config';
+
+export const runtime = 'edge';
+
+export async function GET(_: NextRequest) {
+  const config = getConfig();
+  const result = {
+    SiteName: config.SiteConfig.SiteName,
+    StorageType: process.env.NEXT_PUBLIC_STORAGE_TYPE || 'localstorage',
+  };
+  return NextResponse.json(result);
+}